noun
- 1/24 of a sidereal day. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). sidereal hour. Retrieved September 20, 2026, from http://smartdefine.org/sidereal_hour/definitions/1250139 |
| Chicago | WordNet. 2010. "sidereal hour" http://smartdefine.org/sidereal_hour/definitions/1250139 (accessed September 20, 2026). |
| Harvard | WordNet 2010, sidereal hour, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/sidereal_hour/definitions/1250139>. |
| MLA | WordNet. "sidereal hour" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/sidereal_hour/definitions/1250139> |